At a lost with this m305
- Thread starter MozPhoq
- Start date
Remove the flash hider and triple check there is no remaining weld material that could be cocking your USGI flash hider.
Had the same problem and really couldn't see any marks on the inside...cleaned the weld remnants until completely gone..problem solved.
Had the same problem and really couldn't see any marks on the inside...cleaned the weld remnants until completely gone..problem solved.
notsorichguy
CGN Ultra frequent flyer
- Location
- The city that rhymes with fun
The gas system screw has a spring inside, so pushing into the barrel as you turn should keep it from jamming....
It has been my experience that "flyers" and "stringing" are caused when the rifle is out of tune.
Lots of folks say if it's scoped the barrel timing shouldn't be an issue, but it has been my experience that it can be a big factor when trying to shrink groups.
Whenever a new to me, or a customers, rifle hits my bench the very first thing I do is blow the rifle completely apart until a barrelled action is sitting on my bench. then I double and triple check every single thing for alignment as I re-assemble.
Usually I find the biggest culprits to large groups and fliers/stringing are (in order)
1) Op-rod alignment (loose op-rod guide)
2) flash hider; even USGI FH are not all perfect.
3) bolt lug contact
4) barrel timing
If any of those 4 things are wonky, you will have wonky groups. If those 4 things are ruled out, then it's time to start digging a little deeper. Check your gas nut, piston and gas cylinder lock if they are too tight or too loose you'll have problems. If the barrel is even 2 degrees out of TDC then you will see largish groups and stringing.
In regards to the black feather, I don't have a lot of experience with them. I've installed quite a few rifles, but I just don't have the trigger time to really form a good troubleshooting guide. But from what I have read, the barrel tension is a pretty big deal..... Frank at M14,ca has quite a few exhaustive post about this at the m14 forums.
I have also found that Federal blue box 150 gr ammo is a very good barometer of how the rifle will shoot. It is the ammo I test all of my customers rifles with before calling a rifle "done".
Above all else, remember some rifles are just poor "groupers" but are still good shooters.... I have a SAI that went from a 7" rifle to a 2.5" rifle just by tuning (and a few aftermarket parts). I believe that the SAI has a poor barrel because it should be a solid 1.5" gun what with what I've done to it...... But I can still hit a pop can at 100y off hand with boring regularity.
Cheers! and welcome to the addiction!
It has been my experience that "flyers" and "stringing" are caused when the rifle is out of tune.
Lots of folks say if it's scoped the barrel timing shouldn't be an issue, but it has been my experience that it can be a big factor when trying to shrink groups.
Whenever a new to me, or a customers, rifle hits my bench the very first thing I do is blow the rifle completely apart until a barrelled action is sitting on my bench. then I double and triple check every single thing for alignment as I re-assemble.
Usually I find the biggest culprits to large groups and fliers/stringing are (in order)
1) Op-rod alignment (loose op-rod guide)
2) flash hider; even USGI FH are not all perfect.
3) bolt lug contact
4) barrel timing
If any of those 4 things are wonky, you will have wonky groups. If those 4 things are ruled out, then it's time to start digging a little deeper. Check your gas nut, piston and gas cylinder lock if they are too tight or too loose you'll have problems. If the barrel is even 2 degrees out of TDC then you will see largish groups and stringing.
In regards to the black feather, I don't have a lot of experience with them. I've installed quite a few rifles, but I just don't have the trigger time to really form a good troubleshooting guide. But from what I have read, the barrel tension is a pretty big deal..... Frank at M14,ca has quite a few exhaustive post about this at the m14 forums.
I have also found that Federal blue box 150 gr ammo is a very good barometer of how the rifle will shoot. It is the ammo I test all of my customers rifles with before calling a rifle "done".
Above all else, remember some rifles are just poor "groupers" but are still good shooters.... I have a SAI that went from a 7" rifle to a 2.5" rifle just by tuning (and a few aftermarket parts). I believe that the SAI has a poor barrel because it should be a solid 1.5" gun what with what I've done to it...... But I can still hit a pop can at 100y off hand with boring regularity.
Cheers! and welcome to the addiction!
Travis Bickle
CGN Ultra frequent flyer
- Location
- Upper Lower Middle Alberta
Yeah, that can't be good lol
It may be setting the groups off. However if the projectile isn't contacting the flash hider then it's not going to affect anything much.
The crown on the muzzle is what sends the projectile on its path.
If it isn't hitting the flash hider it shouldn't be causing any major accuracy issues.
So what were the overall group measurements of 5 rounds?
What I would do is take off the scope, take off the flash hider and then turn the gas system off
Then fire some groups with the iron sights.
That will tell you were to focus big time. I doubt it's the rifle itself but again what were your overal group measurements?
Okay I didn't get to try it with gas turned off. But anyway i'm fed up with this rifle. I had put it up for sale on the EE forum but just thought it would be unfair to an eventual buyer. So i'll just strip it down ans sell the parts. Thanks for your help and care.
Whatever. I've talk to guys at my club who've thrown hundreds after thousands to make theirs shoot satisfyingly. I don't intend to go down that path. In fact thinking about it, adding 1600$ on a 500$ Chinese piece of junk didn't make sense. I would not recommend anyone to buy the Blackfeather stock, it's not worth the price.
This makes me think post number 29 is right.
notsorichguy
CGN Ultra frequent flyer
- Location
- The city that rhymes with fun
Send it so someone.....
I know a guy who can tune it into a 2-3" gun for under $500.
PM me for the contact info.
I know a guy who can tune it into a 2-3" gun for under $500.
PM me for the contact info.
Its all in good spirit buddy, dont care too much about it
maybe you are just unlucky, you know how QC is lacking for those rifle. im lucky with mine, I do an average of 3 MOA with surplus ammo and iron sights. Mods are the spring guide from m14.ca (I saw no difference in group size but the space between shots became more consistent) shimmed gas cylinder (cut my groups in half) and unitized gas cylinder (lost 1 MOA with that.)
haha yeah ive never one group smaller than 8 MOA. Dont bother posting pic, I talk about real life experience.
Travis Bickle
CGN Ultra frequent flyer
- Location
- Upper Lower Middle Alberta
Don't go sideways man. It may be good to go.
We're trying to help you figure out if it really is the rifle/if there is a problem with it or if maybe your expectations were too high.
Even if you sell it at least you will have 100% comfort in knowing you're selling a 100% functional gun that shoots the way it's supposed. Then you can get your money back instead of parting it out and maybe losing cash.
There has been plenty of sound advice to follow. I would personally go back out for one more trip with it and try the recommendations thus far ie take off the scope and shoot it with the irons. Then try it with the gas turned off and if you can remove the flash hider.
Post some images of the groups at 100 meters and we can tell you right away if the rifle is good to go or actually defective Sir.
I have a Norc M14 with a NM rear sight installed, pretty much stock condition (barrel straightened/indexed and gas system shimmed tight) and I can get 3" groups at 100 meters with good ammo with the irons if I'm on that day, so they are definitely well within your expectations without dropping a lot of cash and time.
